Demountable rim



April 2o, 1926. Y H. L. cooK DEMOUNTABLE RIM Filed Dec. 4, 1924 2 53196103-5119 l yea @Pto/:M0130 mi A A i v n gu/ventola 3fm/@evt Si. @OO

April zo i926. Y 1,581,679

H. l.. COOK DEMOUNTABLE RIM Filed Dec. 4, 1924 2 Sheets-Sheet 2 d N A/ Il G00 gwoon/bou Patented Apr. 20, 1926.

UNITED QSTA :ESQ

HERBERT L. econ, orsonrirLA GRANGE, MAINE,

DEMOUNTABLE nrivi.

A Application filed December 4, 1924. Serial No. 753,956.

To all 'whom t may concer/n.'

Be it known that I, HERBERT L. Coon, a citizen of the United States, residing at South La Grange, in the'county of Penobscot and State of Maine, have invented cerr tain new and useful Improvements in Ilemountable Rims; and I do declare thefollowing to be a full, clear,'and exact description ofthe invention, such as will enable others skilled in the art-to which it apper-V tains to make and use the same.

My invention relates to means for locking a demountable rim upon a wheel felly by turning the rim circumferentially `uponthe felly, and its Object is to provide unique means for locking the rim in operativeposition upon the wheel. Y

llVith the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings.

Figure l is a side elevation of a wheel equipped with the improved demountable rim and locking means for the latter.

Figure 2 is a vertical sectional view cut in a central plane between opposite sides of the wheel.

Figure 3 is a vertical transverse sectional view on line 3 3 of Fig. 1, the wheelbeing shown in edge View.

Figures 4 and 5 are enlarged detail transverse sectional views as indicated by lines 44 and 5%5 of Fig. 1.

Figure 6 is a vertical sectional view of the demountable rim, partly in elevation.

Figure 7 is a similar view of the wheel.

Figure 8 is a vertical sectional View on line 8-8 of Fig. 6.

Figure 9 is a detail view showing a 'differs ent manner of locking the rim on the wheel.

Figure 10 is a detail sectional view showing a still further way of holding the rim against turning on the wheel. y

Figure 11 is a detail transverse section, partly in elevation, illustrating the use of 'the tool for circumferentially turning the rim with respect to the felly.

Figure 12 is a perspective view of the tool shown in Fig. 11.

Figure 13 is a detail section of a form of rim which may be used if desired.y

In the drawings above briefly described, a wheel is shown having a felly 1 provided with a metal felly band 2 which is secured thereto in any desired manner. The outer peripheral side of -this band,- is provided with groups 3 of ribs, these groups being circumferentially spaced apart. Eachk group comprises a plurality of parallel circumferentially extending ribs and said groups Vare preferably spaced apart uniform distances, the ribs of all groupsbeing pitched inthe saine manner as screw threads.` A demountable rim 4f is provided to surround the felly band 21 and its'ribs 3, andthe inner side of this rim is provided with circumferentially spaced; groups of pitched rifbs 5: which cor respondfto the ribs 3 and are adapted to interlock with the latter'4 when the rim is moved onto the wheel and circumferentiall'y turned with respect tothe latter. The two series of ribs 3 and 5 are shown interlocked in Figs. 2' and 5, andr it wil-libe seen that when this interlocking takes place, the rim is held against lateral movement from the wheel. f If desired, the rim 4 may be transversely split and provided with any suitable means 3 normally connecting its ends, or it may have a detachable side ring 8, as in Fig. 13. The rim is` of course provided with the usual valve stem openinfc), 9 which registers with a slot 1() in theA felly and felly band, the slot being of a length to permit the necessary circumferentialturning of the rim with respect to the wheel, when removing or applying the former. Preferably, one edge of the rim 4 is provided with a continuousginn wardly extending flange 11 to abut one edge of the felly band 2, and the opposite edge of this felly band is preferably provided with a projecting rib 12 for reception in an edge portion of the rim. At one point, this rib 12 is interrupted by a notch 13 which receives a portion of the thickened outer end 14 of a lug 15 which is secured against the felly by an appropriate bolt ,16. The thickened end of this lug is provided with teeth 17 which Vengage circumferentially spaced teeth 18 formed on rim 4, at one'edge of the latter. When the rim is turned to the maximum regardless of wear, when applying it to the wheel, it will be seen that the teethl will engage certain of the teeth 18, so as to effectively lock the rim and felly together.

For the purpose of relatively turning the rim and felly, when the lug 15 is removed, I prefer to employ a hand lever 19 having a bifurcated end 20 to straddle the bolt 16 as shown in Fig. 11, said lever having a lateral pin 21 for reception in any of aplurality of openings 22 which are formed in one flange of the rim. With the lever 19 positioned as shown in Fig. 11, it will be seen that it may be eectively used for relatively turning the rim and telly to either apply or remove the former.

Figure 9 illustrates a different form of construction which may be employed to lock the rim 4 against circumferential movement azsocketed plate integral with or otherwise secured to the inner side'r of the riinrt for engagement with the outer end of a screw 28 which is threaded through an appropriate guide L29 passing through the vlelly and the fellyvband of the Wheel.

By providing the constructionshown and described or a substantial equivalent thereof, it will be seen that the rim may be quickly and easily applied to or removed from the wheel, whenever necessary. As excellent results are obtainable from the general constructions disclosed, they may Well be followed, but within the scope of the invention as claimed, modificationsmay of course be made.

I claim: y

Ina wheel having interlocking connecting means between its felly and rim controlled by relative turning of said elly and rim; circumferentially yspaced closely relatedvteeth on the innery side of the rim at one edge of the latter, lug contacting withy the ladjacent side of the felly and havinga thickened outer end provided' ,with teeth meshingy with the aforesaid teeth, said elly having a recess receilving a. portion of said. thickened outer end vof said lug, and a A*bolt detachably securing said lug to the felly. y ,l i

In testimony whereofv I have hereunto aiixed my signature. f Y HERBERT L. COOK.

lals 

